I am planning to build a small, insulated outdoor workshop, approximately 7’x10′ (with large doors to expand the usable space outdoors in the summer). I am located in Ottawa, Canada so it is cold here in the winter!
I would like to keep the space modestly heated in the winter so that I can store supplies and equipment out there (tools, tool batteries, glues, finishes, paints…) without them being damaged. I would also turn the heat up when I am using the shop (maybe once or twice a week).
What would you suggest as a minimum temperature to keep it to avoid anything being damaged by the cold? I am hoping the answer is not 70F… would be pretty expensive to heat!